.deepdoc-intro{
  position:relative;
  isolation:isolate;
  overflow-x:clip;
  max-width:100%;
  padding:40px;
  margin-bottom:32px;
  border-radius:var(--r-canvas);
  background:
    radial-gradient(ellipse at 4% 8%,var(--glow-lagoon),var(--transparent) 58%),
    radial-gradient(ellipse at 98% 94%,var(--glow-tide),var(--transparent) 60%),
    linear-gradient(180deg,var(--bg-top),var(--bg-bottom));
  box-shadow:var(--panel-shadow);
}
.deepdoc-intro h1{
  max-width:900px;
}
.deepdoc-intro p{
  max-width:820px;
  color:var(--muted);
}
.deepdoc-intro .deepdoc-lead{
  font-size:var(--h3-size);
  color:var(--text);
  font-weight:var(--weight-semibold);
}
.deepdoc-intro p a{
  color:var(--accent-dark);
  text-decoration:underline;
  text-underline-offset:3px;
}
.deepdoc-chapter{
  margin-inline:auto;
  padding-top:24px;
  padding-bottom:32px;
  border-bottom:1px solid var(--border);
}
.deepdoc-chapter:last-child{
  border-bottom:0;
  padding-bottom:0;
}
.deepdoc-chapter .table-scroll{
  margin-block:24px;
}
.deepdoc-chapter pre{
  margin-block:24px;
}
.deepdoc-chapter .callout{
  font-size:var(--body-size);
}
@media(max-width:640px){
  .deepdoc-intro{
    padding:24px 20px;
    margin-bottom:24px;
  }
  .deepdoc-chapter{
    padding-top:16px;
    padding-bottom:24px;
  }
}